Battery, power consuming device and method for manufacturing battery

Abstract

A battery includes two or more battery cells arranged in a first direction. One of a cathode and an anode of each of the battery cells is configured with a first snap-fit body, the other one of the cathode and the anode of each of the battery cells is configured with a second snap-fit body, the first snap-fit body of one of any two adjacent battery cells is snap-fit to the second snap-fit body of the other one of the any two adjacent battery cells, and movement of the battery cells connected by snap-fitting the first snap-fit body to the second snap-fit body in the first direction is limited.

What is claimed is: 
     
         1 . A battery, comprising:
 two or more battery cells arranged in a first direction;   wherein:
 one of a cathode and an anode of each of the battery cells is configured with a first snap-fit body, the other one of the cathode and the anode of each of the battery cells is configured with a second snap-fit body; and 
 the first snap-fit body of one of any two adjacent battery cells is snap-fit to the second snap-fit body of the other one of the any two adjacent battery cells, and movement of the battery cells connected by snap-fitting the first snap-fit body to the second snap-fit body in the first direction is limited. 
   
     
     
         2 . The battery according to  claim 1 , wherein:
 each of the battery cells has a battery cell body, and the cathode and the anode arranged at opposite ends of the battery cell body, respectively.   
     
     
         3 . The battery according to  claim 2 , wherein:
 the cathode and the anode are each configured with a boss portion arranged on the battery cell body, the first snap-fit body and the second snap-fit body are integrally connected to the corresponding boss portions, respectively, the boss portion connected to the first snap-fit body is a first boss portion, and the boss portion connected to the second snap-fit body is a second boss portion.   
     
     
         4 . The battery according to  claim 3 , wherein:
 the boss portion, the first snap-fit body, and the second snap-fit body are made of at least any one of aluminum metal, copper metal, nickel plated aluminum metal, silver plated aluminum metal, nickel plated copper metal, and silver plated copper metal.   
     
     
         5 . The battery according to  claim 2 , wherein
 the first snap-fit body is formed into a shape of a protruding strip with a cross section formed in a widening manner as the first snap-fit body extends away from the battery cell body; and   the second snap-fit body is formed into a shape of a groove capable of being snap-fit to the first snap-fit body in a manner of surface contact.   
     
     
         6 . The battery according to  claim 5 , wherein:
 in a state in which the first snap-fit body of one of the any two adjacent battery cells is snap-fit to the second snap-fit body of the other one of the any two adjacent battery cells, the first boss portion and the second boss portion are maintained in surface contact with each other in a state in which the first snap-fit body is snap-fit to the second snap-fit body.   
     
     
         7 . The battery according to  claim 6 , wherein:
 a welding portion formed by welding is arranged at a seam between the first boss portion and the second boss portion.   
     
     
         8 . The battery according to  claim 2 , wherein:
 the first snap-fit body is formed to have:
 a first rising portion arranged in a rising manner relative to the first boss portion, one end of the first rising portion being integrally connected to the first boss portion; and 
 a first bent portion arranged at the other end of the first rising portion in a bent manner relative to the first rising portion, a first accommodation space into which the second snap-fit body is inserted being formed between the first bent portion and the first boss portion; and 
   the second snap-fit body is formed to have:
 a second rising portion arranged in a rising manner relative to the second boss portion, one end of the second rising portion being integrally connected to the second boss portion; and 
 a second bent portion arranged at the other end of the second rising portion in a bent manner relative to the second rising portion, a second accommodation space into which the first snap-fit body is to be inserted being formed between the second bent portion and the second boss portion. 
   
     
     
         9 . The battery according to  claim 8 , wherein:
 the first rising portion is formed by part of a peripheral wall of a cylindrical body with the first boss portion as a bottom surface, and the second rising portion is formed by a remaining part of the peripheral wall of the cylindrical body.   
     
     
         10 . The battery according to  claim 8 , wherein:
 the first bent portion and the second bent portion each have a shape of a plate having a uniform thickness.   
     
     
         11 . The battery according to  claim 8 , wherein:
 the first bent portion is formed as a plate of which a thickness gradually reduces as the first bent portion extends away from the first rising portion; and   the second bent portion is formed as a plate of which a thickness gradually reduces as the second bent portion extends away from the second rising portion.   
     
     
         12 . The battery according to  claim 8 , wherein:
 in a state in which the first snap-fit body of one of the any two adjacent battery cells is snap-fit to the second snap-fit body of the other one of the any two adjacent battery cells, the first bent portion is inserted in the second accommodation space, and the second bent portion is inserted in the first accommodation space; and   the first boss portion and the second bent portion are maintained in surface contact with each other, and the second boss portion and the first bent portion are maintained in surface contact with each other.   
     
     
         13 . The battery according to  claim 12 , wherein:
 welding portions formed by welding are arranged at a seam between the first boss portion and the second snap-fit body and at a seam between the second boss portion and the first snap-fit body.   
     
     
         14 . The battery according to  claim 2 , wherein:
 two ends of the battery cell body in the first direction are each provided with an explosion-proof valve openable under an action of a pressure of gas inside the battery cell, and the adjacent explosion-proof valves are arranged staggered from each other in location.   
     
     
         15 . A power consuming device, comprising the battery according to  claim 1 . 
     
     
         16 . A method for manufacturing the battery according to  claim 1 , comprising:
 arranging the two or more battery cells in the first direction, and snap-fitting the first snap-fit body of the one of the any two adjacent battery cells to the second snap-fit body of the other one of the any two adjacent battery cells; and   welding a seam at a periphery of a snap-fit structure along the periphery of the snap-fit structure formed by snap-fitting the first snap-fit body to the second snap-fit body.